<template>
  <div>
    <a-page-header title="分步表单" :ghost="false">
      将一个冗长或用户不熟悉的表单任务分成多个步骤，指导用户完成。
    </a-page-header>

    <div class="m-5 step-form-content">
      <div class="step-form-form">
        <a-steps :current="current">
          <a-step title="填写转账信息"> </a-step>
          <a-step title="确认转账信息"> </a-step>
          <a-step title="完成"> </a-step>
        </a-steps>
      </div>
      <div class="mt-5">
        <Step1 @next="handleStep1Next" v-show="current === 0" />
        <Step2
          @prev="handleStepPrev"
          @next="handleStep2Next"
          v-show="current === 1"
          v-if="initSetp2"
        />
        <Step3 v-show="current === 2" @redo="handleRedo" v-if="initSetp3" />
      </div>
    </div>
  </div>
</template>
<script lang="ts">
  import { defineComponent, ref, reactive, toRefs } from 'vue';
  import Step1 from './Step1.vue';
  import Step2 from './Step2.vue';
  import Step3 from './Step3.vue';
  export default defineComponent({
    components: { Step1, Step2, Step3 },
    setup() {
      const current = ref(0);

      const state = reactive({
        initSetp2: false,
        initSetp3: false,
      });

      function handleStep1Next(step1Values: any) {
        current.value++;
        state.initSetp2 = true;
        console.log(step1Values);
      }

      function handleStepPrev() {
        current.value--;
      }

      function handleStep2Next(step2Values: any) {
        current.value++;
        state.initSetp3 = true;
        console.log(step2Values);
      }

      function handleRedo() {
        current.value = 0;
        state.initSetp2 = false;
        state.initSetp3 = false;
      }

      return {
        current,
        handleStep1Next,
        handleStep2Next,
        handleRedo,
        handleStepPrev,
        ...toRefs(state),
      };
    },
  });
</script>
<style lang="less" scoped>
  .step-form-content {
    padding: 24px;
    background: #fff;
  }

  .step-form-form {
    width: 750px;
    margin: 0 auto;
  }
</style>
